Sustainability of subsurface dams: What influences community satisfaction in Korlongo, a village in Chad?

Subsurface dams are important in improving water supply in arid and semi-arid regions; however, their sustainability depends largely on local community satisfaction. This study examines the factors influencing community satisfaction of the Korlongo village in Guera, Chad. Data from 40 families representing 5% of the village population using the dam was collected using a questionnaire designed to collect data on the main factors influencing community satisfaction. These are the size of the family (adults, children), water consumption in liters per day, who transports water, community participation in building, operation and maintenance of the Dam and the community satisfaction level. The results show that the size of the family in terms of adults was small (62.5%), family size in terms of children was large (42.5%), water consumption per day is large (40.0%), young people (60.0%) who are transporting water. The community has been largely (95%) involved in the operation (no maintenance of the dam), and 72.5% is significantly involved in the construction of the dam's gravel well. Statistical analysis using linear regression significantly predicted community satisfaction of the dam from the size of family (adults), size of family (children), water consumption in liters per day, who transports water, community participation in building, operation and maintenance of the Dam. The findings are important for the sustainability of the subsurface dam and will contribute to improving water management.